Dropping Leaves May Indicate Oak Wilt

By Linda Williams, DNR Forest Health Specialist, Woodruff;
Linda.Williams@wisconsin.gov or 920-360-0665

Photo showing that oak leaves that drop from a tree infected with oak wilt may be all brown or all green, or often they will have green near the base of the leaf and the outer portions will be brown or watersoaked green.

Oak leaves that drop from a tree infected with oak wilt may be all brown or all green, or often they will have green near the base of the leaf and the outer portions will be brown or watersoaked green. / Photo Credit: Linda Williams, Wisconsin DNR.

The middle of summer is the time to start watching oak trees for symptoms of oak wilt. Although symptoms show up suddenly and leaves drop quickly, symptoms can emerge anytime between now and when leaves turn color in the fall.

Trees that were wounded in the spring and became infected with the fungus that causes oak wilt will usually die that same year. In established oak wilt pockets, the fungus moves underground through grafted root systems and trees will wilt as the fungus moves into the tree.

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Tubakia Leaf Disease Affects Red Oak

By Linda Williams, DNR Forest Health Specialist, Woodruff;
Linda.Williams@wisconsin.gov or 920-360-0665

A tree showing that lower branches are thin and have lost leaves due to Tubakia leaf spot, while leaves on its upper branches look good.

A tree showing that lower branches are thin and have lost leaves due to Tubakia leaf spot, while leaves on its upper branches look good. / Photo Credit: Linda Williams, Wisconsin DNR.

Tubakia leaf spot is a leaf disease caused by a fungus (Tubakia dryina) that typically affects the lower canopy of red oaks.

Because of all the rain that came during the spring and early summer of 2024, the fungus has started to impact some trees. Problems didn’t occur last year because the weather was too dry.

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Emerald Ash Borer Confirmed In All 72 Counties

By Art Kabelowsky, DNR Outreach and Communications, Fitchburg;
Arthur.Kabelowsky@wisconsin.gov; 608-335-0167

Closeup photo of an adult emerald ash borer. The pest has been detected in Burnett County, making it the 72nd and final county in Wisconsin that have confirmed presence of the invasive insect.

The emerald ash borer has been detected in Burnett County, making it the 72nd and final county in Wisconsin that have confirmed presence of the invasive insect. / Photo Credit: Paul Cigan, Wisconsin DNR

Sixteen years after the Wisconsin Department of Natural Resources (DNR) first detected emerald ash borer (EAB) in Wisconsin, the invasive beetle has been found in the last county without a previous detection.

Burnett County, in northwest Wisconsin, is the 72nd and final county to have a detection of the tree-killing pest.

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UW Madison Extension Urban Forestry Workshop: Bare Root Trees And Gravel Beds

Join us for a two-part workshop on the value and uses of bare root trees and how to use gravel beds to hold and maintain bare root stock before it is planted. Part one will be delivered via Zoom on Friday, Sept. 20. Part two will be an in-person field day visit to an operating gravel bed. You will select one of the six locations around the state during registration. ISA CEUs will be available for both parts.

The cost of the workshop is $30, and the registration deadline is Sept. 12. Continue reading “UW Madison Extension Urban Forestry Workshop: Bare Root Trees And Gravel Beds”

DNR Urban Forestry Council Welcomes New Members

The Wisconsin Department of Natural Resources (DNR)’s Division of Forestry recently welcomed two new members to the Wisconsin Urban Forestry Council and said farewell to several members who contributed much to the council. In addition, eight council members renewed their commitment for another 3-year term.

The Wisconsin Urban Forestry Council is an advisory committee to the DNR’s Division of Forestry, guiding the best ways to preserve, protect, expand and improve Wisconsin’s urban and community forest resources. The council is comprised of 23 people appointed by the Secretary of the DNR.

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Upcoming Invasive Plant Management Workshops

Southeastern Wisconsin Invasive Species Consortium is teaming up again with Johnson’s Nursery, Inc.TM to offer Invasive Plant Management Workshops in 2024. Take this class to ensure that you are using the most appropriate, efficient, up-to-date and least environmentally damaging methods in those efforts. Continue reading “Upcoming Invasive Plant Management Workshops”

Register For The 2024 Partners In Community Forestry Conference

The Arbor Day Foundation is thrilled to announce the 2024 Partners in Community Forestry Conference and Alliance for Community Trees Day will be held in Chicago, Illinois Nov. 20-21.

This gathering unites passionate individuals, communities, organizations and leaders to explore innovative solutions, share insights and collaborate on the future of urban forestry. Join leaders across the industry to focus on strengthening the bonds between people and trees, fostering sustainable practices and creating green, thriving urban landscapes. Continue reading “Register For The 2024 Partners In Community Forestry Conference”

Inflation Reduction Act Community Change Grant Opportunity

The U.S. Environmental Protection Agency (EPA)’s new Environmental and Climate Justice Community Change Grants program (Community Change Grants) has announced a Notice of Funding Opportunity for approximately $2 billion dollars in Inflation Reduction Act funds in environmental and climate justice activities to benefit disadvantaged communities through projects that reduce pollution, increase community climate resilience and build community capacity to address environmental and climate justice challenges. Continue reading “Inflation Reduction Act Community Change Grant Opportunity”

Community Forest Corps Funding Opportunities Available

As part of the USDA Forest Service Urban & Community Forestry’s Inflation Reduction Act Program, the Center for Regenerative Solutions and Urban Sustainability Directors Network opened the application for capacity building and workforce development grants for communities to accelerate urban forestry through the launch and management of Community Forestry Corps youth employment programs. Continue reading “Community Forest Corps Funding Opportunities Available”

Preliminary Seedling Availability For Spring 2025 Planting | Wisconsin DNR Reforestation Program

Proper tree planting requires a lot of decision-making, and one of the most crucial decisions is which species and age are the most appropriate and cost-effective to plant. The Wisconsin Department of Natural Resources (DNR) Reforestation Program is taking some of the unknowns out of that process by giving landowners and property managers an early peek at the seedlings we anticipate having available in fall 2024 for planting in spring 2025.

This list is preliminary, as some species may be added, adjusted or removed depending on health, growth and other factors as the growing season progresses.

The listed tree and shrub seedlings will be available to purchase starting Monday, Oct. 7, 2024. Though we expect high demand, we anticipate having a variety of species and ages available to all customers.

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